You are correct in details,

but wrong to attribute high-rpm torque effects to "power". The effect is due to gearing only. When you are in a flat range of the torque curve and using one fixed gear, your power output keeps going up, but your acceleration remains the same.

Solving the tuning problem for drag racing is possible with my solution to the ODE in section (3). First, given a set of gear ratios, you solve the optimal shifting problem:

When you pass the peak point of the torque curve, acceleration starts to drop, but you still have a higher gear ratio compared to the next higher gear. You shift at x1 rpm into gear 2 at x2 rpm, so that K1 * x1 = K2 * x2, and accelerate from there. The resulting performance is optimal for this set of gear ratios.

Next, you optimize this optimal performance over the set of all possible gear ratio numbers, and you'll have the best drag-racing performance.

Optimizing the drivetrain for all possible driving conditions is much harder, and that's what automotive engineers are for.

所有跟帖： 

• 顶一把, 好. -657- ♀ (0 bytes) () 12/07/2005 postreply 16:20:05

• 回复：You are correct in details, -kfbai- ♀ (744 bytes) () 12/07/2005 postreply 16:24:14

• What you mentioned is correlation, -Bonbon330S- ♂ (961 bytes) () 12/07/2005 postreply 16:43:25

• 回复：What you mentioned is correlation, -kfbai- ♀ (975 bytes) () 12/07/2005 postreply 17:34:42